57Fe Mössbauer study of the interstitial nitrogen atom effects of NdFe10.5V1.5Nx

Jinbo Yang; Weihua Mao; Yingchang Yang; Zhenjie Zhao; Fashen Li

doi:10.1063/1.367553

⁵⁷Fe Mössbauer study of the interstitial nitrogen atom effects of NdFe_10.5V_1.5N_x

Jinbo Yang, Weihua Mao, Yingchang Yang, Zhenjie Zhao, Fashen Li

Research output: Contribution to journal › Article › peer-review

Abstract

Magnetic and ⁵⁷Fe Mössbauer spectra measurements were carried out to study the interstitial nitrogen atom effects in the NdFe _10.5V_1.5N_x (0≤x≤2.1) compounds. It is found that saturation magnetization, magnetocrystalline anisotropy, hyperfine fields, and isomer shifts of NdFe_10.5V_1.5N_x are strongly enhanced upon nitrogenation, due to magneto-volume effects and chemical bonding effects of nitrogen atoms. On the basis of the variation of isomer shifts and hyperfine fields as a function of nitrogen concentration, and by using a set of phenomenological formulas, the contributions of magneto-volume effect and the chemical bonding effect to the hyperfine parameters are successfully separated. The pure magneto-volume effect and the chemical bonding effect of the nitrogen atoms will give a positive contribution to the average hyperfine fields and isomer shifts of the Fe atoms in the NdFe _10.5V_1.5N_x nitrides.

Original language	English (US)
Pages (from-to)	6923-6925
Number of pages	3
Journal	Journal of Applied Physics
Volume	83
Issue number	11
DOIs	https://doi.org/10.1063/1.367553
State	Published - 1998
Externally published	Yes

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Physics and Astronomy(all)

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title = "57Fe M{\"o}ssbauer study of the interstitial nitrogen atom effects of NdFe10.5V1.5Nx",

abstract = "Magnetic and 57Fe M{\"o}ssbauer spectra measurements were carried out to study the interstitial nitrogen atom effects in the NdFe 10.5V1.5Nx (0≤x≤2.1) compounds. It is found that saturation magnetization, magnetocrystalline anisotropy, hyperfine fields, and isomer shifts of NdFe10.5V1.5Nx are strongly enhanced upon nitrogenation, due to magneto-volume effects and chemical bonding effects of nitrogen atoms. On the basis of the variation of isomer shifts and hyperfine fields as a function of nitrogen concentration, and by using a set of phenomenological formulas, the contributions of magneto-volume effect and the chemical bonding effect to the hyperfine parameters are successfully separated. The pure magneto-volume effect and the chemical bonding effect of the nitrogen atoms will give a positive contribution to the average hyperfine fields and isomer shifts of the Fe atoms in the NdFe 10.5V1.5Nx nitrides.",

author = "Jinbo Yang and Weihua Mao and Yingchang Yang and Zhenjie Zhao and Fashen Li",

year = "1998",

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AU - Yang, Jinbo

AU - Mao, Weihua

AU - Yang, Yingchang

AU - Zhao, Zhenjie

AU - Li, Fashen

PY - 1998

Y1 - 1998

N2 - Magnetic and 57Fe Mössbauer spectra measurements were carried out to study the interstitial nitrogen atom effects in the NdFe 10.5V1.5Nx (0≤x≤2.1) compounds. It is found that saturation magnetization, magnetocrystalline anisotropy, hyperfine fields, and isomer shifts of NdFe10.5V1.5Nx are strongly enhanced upon nitrogenation, due to magneto-volume effects and chemical bonding effects of nitrogen atoms. On the basis of the variation of isomer shifts and hyperfine fields as a function of nitrogen concentration, and by using a set of phenomenological formulas, the contributions of magneto-volume effect and the chemical bonding effect to the hyperfine parameters are successfully separated. The pure magneto-volume effect and the chemical bonding effect of the nitrogen atoms will give a positive contribution to the average hyperfine fields and isomer shifts of the Fe atoms in the NdFe 10.5V1.5Nx nitrides.

AB - Magnetic and 57Fe Mössbauer spectra measurements were carried out to study the interstitial nitrogen atom effects in the NdFe 10.5V1.5Nx (0≤x≤2.1) compounds. It is found that saturation magnetization, magnetocrystalline anisotropy, hyperfine fields, and isomer shifts of NdFe10.5V1.5Nx are strongly enhanced upon nitrogenation, due to magneto-volume effects and chemical bonding effects of nitrogen atoms. On the basis of the variation of isomer shifts and hyperfine fields as a function of nitrogen concentration, and by using a set of phenomenological formulas, the contributions of magneto-volume effect and the chemical bonding effect to the hyperfine parameters are successfully separated. The pure magneto-volume effect and the chemical bonding effect of the nitrogen atoms will give a positive contribution to the average hyperfine fields and isomer shifts of the Fe atoms in the NdFe 10.5V1.5Nx nitrides.

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⁵⁷Fe Mössbauer study of the interstitial nitrogen atom effects of NdFe_10.5V_1.5N_x

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